"It is a religious duty for those who cook to learn how to prepare healthful food in different ways, so that it may be eaten with enjoyment. Mothers should teach their children how to cook. What branch of the education of a young lady can be so important as this? The eating has to do with the life. Scanty, impoverished, ill-cooked food is constantly depraving the blood by weakening the blood-making organs. It is highly essential that the art of cookery be considered one of the most important branches of education. There are but few good cooks. Young ladies consider that it is stooping to a menial office to become a cook. This is not the case. They do not view the subject from a right standpoint. Knowledge of how to prepare food healthfully, especially bread, is no mean science. 1T 682.1"
"She riseth also while it is yet night, and giveth meat to her household, and a portion to her maidens."
Both passages emphasize the importance of women providing food for their households. Proverbs 31:15 highlights a woman's diligence in this area, while the EGW passage stresses the importance of learning and teaching healthful cooking skills. The connection is a valid thematic parallel.
"In many families we find dyspeptics, and frequently the reason of this is the poor bread. The mistress of the house decides that it must not be thrown away, and they eat it. Is this the way to dispose of poor bread? Will you put it into the stomach to be converted into blood? Has the stomach power to make sour bread sweet? heavy bread light? moldy bread fresh? 1T 682.2"
"Do not ye yet understand, that whatsoever entereth in at the mouth goeth into the belly, and is cast out into the draught?"
Both passages relate to the digestive process. Matthew 15:17 speaks generally about what enters the mouth and its subsequent path. EGW's passage focuses on the specific effects of poor bread on the stomach. The connection is weak, but present.